摘要:<!DOCTYPE html><html><head><meta charset="UTF-8"><title>全选</title><style type="text/css">.box{width:120px;border:1px solid #000;border-rad
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>全选</title>
<style type="text/css">
.box{width:120px;border:1px solid #000;border-radius:5px;padding:5px 10px;margin: 20px auto;}
.box div{border-bottom: 1px solid pink;padding-bottom: 10px;margin-bottom: 8px;}
.box input{margin: 8px}
</style>
<script type="text/javascript">
function checkAll(){
var checkall,item;
checkall=document.getElementById('checkall')//获取全选
item=document.getElementsByName("item[]")//获取下面选框
for(var i=0;i<item.length;i++) {
if(checkall.checked){
item[i].checked=true
}else{
item[i].checked=false
}
}
}
</script>
</head>
<body>
<div>
<div>
<input type="checkbox" id="checkall" onclick="checkAll()"><label for="checkall">全选</label>
</div>
<input type="checkbox" name="item[]">选项1<br>
<input type="checkbox" name="item[]">选项2<br>
<input type="checkbox" name="item[]">选项3<br>
<input type="checkbox" name="item[]">选项4<br>
</div>
</body>
</html>
//总结:授课细节及逻辑需要改进,可能我比较追求完美
批改老师:灭绝师太批改时间:2019-01-08 09:19:11
老师总结:收到你的反馈啦!全选完成的不错,后期运用的比较多,所以一定要好好掌握!